Wearable Robotic System and Robotic Mirror Therapy in Spastic Hemiplegia Post Botulinum Toxin Injection

Spastic Clinical Trial

Official title:

A Randomized Control Trial to Compare the Effects Between Wearable Robotic System and Robotic Mirror Therapy in Patients With Spastic Hemiplegia Post Botulinum Toxin Injection: Neurophysiological and Behavior Outcomes

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04826900
• Other study ID #: NRMPG8J0211
• Status: Completed
• Phase: N/A
• Start date: August 1, 2019
• Est. completion date: January 23, 2022

Study information

• Verified date: March 2021
• Source: Chang Gung Memorial Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this project is to examine and compare the immediate and long-term effects of combined Botulinum toxin type A(BoNT-A) injection with wearable robotic hand system (RT) and Robotic mirror therapy (RMT) in patients with spastic hemiplegic stroke.

Description:

Spasticity, a common impairment after stroke, has a profound impact on activity and participation for patients. BoNT-A injection combined with rehabilitation training is recommended to enhance functional recovery of patients with spastic hemiplegic stroke.

Patients with spasticity usually have lower motor function and worse sensory deficits than patients without spasticity. Designing the post BoNT-A injection rehabilitation program should consider the above issues. RT and MT are two interventions providing sensorimotor input for patient with low motor function. Combining both approaches (wearing robotic hand to do mirror therapy) might facilitate the sensorimotor cortex that controls movement and might augment somatosensory input and further treatment efficacy. It is unknown whether and how combining BoNT injection with bilateral RT vs with MT vs with RMT engenders differential effects on motor and related functional performance in patients with spastic hemiplegic stroke.

Forty-eight participants with chronic spastic hemiplegic stroke will be recruited and randomly assigned to one of 2 groups: RT, and RMT. All the post- injection interventions will be implemented 60 minutes/day, 3 days/week, for 8 weeks. At each training session all patients will receive 45-minute RT, or RMT, then 15-minute functional task training.

The outcome measures include 1) body function and structures: Fugl-Meyer Assessment, Modified Ashworth Scale, Medical Research Council scale, 2) activity and participation: Box and block test, Motor Activity Log, and Nottingham Extended Activities of Daily Living Scale, Action Research Arm Test. In addition, to directly reflect a patient's unique needs and goals, Goal Attainment Scaling will be assessed. Electroencephalography (EEG) and functional near infrared reflectance spectroscopy (NIRS) assessments will be done to assess the neurophysiologic effects of the 3 kinds of intervention. The outcome will be measured at pre-treatment,1-week after BoNT-A injection, post-treatment, and 3-month follow- up.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 31
• Est. completion date: January 23, 2022
• Est. primary completion date: January 23, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 20 Years and older

Eligibility

Inclusion Criteria:

• Clinical and imagine diagnosis of a first or recurrent unilateral stroke = 3 months

• Finger flexor muscles spasticity (modified Ashworth scale of = 1+)

• Initial motor part of UE of FMA score ranging from 10 to 56 indicating moderate to severe movement impairment

• No serious cognitive impairment (i.e., Mini Mental State Exam score > 20)

• Age = 20 years

Exclusion Criteria:

• Pregnant

• With bilateral hemispheric or cerebellar lesions

• Sever aphasia

• Significant visual field deficits or hemineglect

• Contraindication for BoNT-A injection

• Treatment with BoNT-A within 6 months before recruitment

• Any fixed joint contracture of the affected upper limb

• A history of orthopedic or other neurological diseases and/or medical conditions that would prevent adherence to the rehabilitation protocol

Related Conditions & MeSH terms

• Hemiplegia
• Hemiplegia, Spastic
• Muscle Spasticity
• Spastic

Intervention

Procedure:
• BoNT-A injections
Botox brand BoNT-A Purified Neurotoxin Complex, (Allergan Pharmaceuticals, Irvine, CA) will be prepared by diluting lyophilized toxin with 0.9% saline to a concentration of 33-100 U/ml. depending on the size of the target muscle. Location of the targeted muscle will be confirmed by using echo guide. The total dose range is 200 units to 500 units. The dose range of each target muscle is as below: 20 and 75 units for flexor carpi ulnaris and flexor carpi radials; 12.5-35 units per fascicle in the flexor digitorum sublimis and flexor digitorum profundus (maximum dose: 120 units for each of these muscles); 10-35 units in the flexor pollicis longus; 25-100 units in the brachioradial ; 50-200 units in the biceps brachii; and 25-75 units in the pronator teres

Other:
• Robotic therapy (RT)
A wearable robotic hand system will be used in this study. The robotic hand system consisted with a wearable exoskeletal hand, sensor glove, and a control box. On the exoskeletal hand, there are five actuators on each of finger structure that can provide external power to bring individual finger moving. The sensor glove has five sensors that can detect the finger's posture during movement and then manipulates exoskeletal hand via the control box. The patient's unaffected hand wears the sensor glove, the affected hand wears the wearable exoskeleton hand, and the unaffected hand does the certain transitive and intransitive tasks as the mirror group, and then makes the affected hand do the same movements driven by the exoskeleton robotic hand.
• Robotic mirror therapy (RMT)
Wearable robotic hand system and mirror system will be used in this group.. The patients in the group will wear the robotic hand to do the mirror therapy. The patient's unaffected hand wears the sensor glove, the affected hand wears the wearable exoskeletal hand, a mirror box with a mirror will be placed in the patient 's midsagittal plane beside the unaffected hand to block his or her view of the affected hand. The patient's unaffected hand does the certain transitive and intransitive tasks and the patient will be instructed to look at the reflection of the unaffected hand in the mirror as if it is the affected hand (the visual input). At the same time the affected hand will be passively moved by the exoskeleton robotic hand which is under the .control of the unaffected hand.
• Functional task training
After either 45 minutes of RT or RMT, all participants receive 15 minutes of training in functional tasks. The functional tasks included taking up and holding bowl or using eating utensils , bringing a cup for drinking, drying sucks by clips, open ing or closing door , turning on or off the light, cleaning the table or window and so on . The functional tasks training will be bases on the needs and ability of patients.

Locations

Country	Name	City	State
Taiwan	Department of Rehabilitation, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung, Taiwan	Kaohsiung

Sponsors (1)

Lead Sponsor	Collaborator
Chang Gung Memorial Hospital

Country where clinical trial is conducted

Taiwan, 

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* Note: There are 65 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Fugl-Meyer Assessment (FMA)	Fugl-Meyer Assessment for Upper Extremity (FMA-UE): The FMA-UE was used to assess the patient's reflexes, movements, and coordination of upper limbs. It consists of 33 items scored on a 3-point ordinal scale (0, cannot perform; 1, performs partially; 2, performs fully). (Fugl-Meyer, Jääskö, Leyman, Olsson, & Steglind, 1975) . The total score ranges from 0 to 66, and a higher score indicates better motor function. Satisfactory psychometric properties of the FMA have been demonstrated. (Thomas Platz et al., 2005).	Change from baseline at 5 months
Primary	Medical Research Council Scale (MRC)	The MRC scale will be used to examine the muscle strength of the affected arm (Medical Research Council, 1976). The MRC scale is a reliable measurement which ranges from 0 (no contraction) to 5 (normal power). The muscle strength will be measured at the shoulder flexor/abductor, elbow flexors/extensors, wrist flexors/extensors, and finger flexors/extensors by using the MRC in this project. Total scale combines all range and computes average scores. Flexor scale combines elbow flexors, wrist flexors, fingers flexors and computes average scores. Proximal scale combines shoulder flexor/abductor, elbow flexors/extensors, and computes average scores. Distal scale combines wrist flexors/extensors, and finger flexors/extensors. The higher scores mean a better outcome.	Change from baseline at 5 months
Primary	Modified Ashworth Scale (MAS)	Spasticity of skeletal muscle in upper extremity was evaluated by using the MAS scale. It uses a 8-point scale(0, 1, 1.5, 2, 2.5, 3, 3.5, 4) to score the average resistance to passive movement for each join with higher score indicating higher spasticity. The MAS has shown good reliability and validity. We assessed the MAS of shoulder flexor/extensor/abductor/adductor, elbow flexors/extensors, forearm pronator/supinator, wrist flexors/extensors, and finger flexors/extensors in this project. Total scale combines all range and computes average scores. Flexor scale combines elbow extensor, wrist extensor, fingers extensor and computes average scores. Proximal scale combines shoulder flexor/extensor/abductor/adductor, elbow flexors/extensors and computes average scores. Distal scale combines forearm pronator/supinator, wrist flexors/extensors, and finger flexors/extensors. The maximum of MAS scale is 4, and the minimum is 0. The higher scores mean a worse outcome.	Change from baseline at 5 months
Primary	Box and Block Test (BBT)	The BBT, which evaluates manual dexterity of the paretic UE, uses a wooden box that has two equally sized compartments. Cubes were placed in one compartment, and the participants were instructed to move the cubes to the other compartment one by one and as quickly as possible within 60 seconds. The score was determined by calculating the number of cubes carried across the partition. The BBT has high test-retest reliability in participants with stroke(Thomas Platz et al., 2005).	Change from baseline at 5 months
Primary	Motor Activity Log (MAL) - Amount of Use Scale (AOU)	The MAL is a semi-structured interview to rate how much [amount of use scale (AOU)] they use their affected upper extremity in 30 daily activities using a 6-point scale. Higher scores represent better performance. The MAL has established reliability, validity, and responsiveness in patients with stroke. The MAL will be used to measure daily use of the affected upper limb in daily life in this project.The total score ranges from 0 to 30.	Change from baseline at 5 months
Primary	Motor Activity Log (MAL) - Quality of Movement Scale (QOM)	The MAL is a semi-structured interview to rate how well [quality of movement scale (QOM)] they use their affected upper extremity in 30 daily activities using a 6-point scale. Higher scores represent better performance. The MAL has established reliability, validity, and responsiveness in patients with stroke. The MAL will be used to measure daily use of the affected upper limb in daily life in this project.The total score ranges from 0 to 30.	Change from baseline at 5 months